Dental gage.



No. 696,I20. Patented Mar. 25, I902.

- C. B. VANDEBPOOL.

DENTAL GAGE.

(Application flied June 24, 1901.

(No Model.)

Inventor.

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UNITED STATES PATENT OFFICE.

CLARENCE 'R. VANDERPOOL, OF GRAND RAPIDS, MICHIGAN.

DENTALGAG E.

SPECIFICATION formingpart of Letters Patent No. 696,120, dated March 25, 1902.

Application filed June 24:, 1901.

To all whom it may concern:

Be it known thatI, CLARENCE R. VANDER- POOL, a citizen of the United States, residing at Grand Rapids, in the county of Kent and State of Michigan, have invented certain new and useful Improvements in Dental Gages, of which the following is a specification.

,My invention relates to improvements in implements for fitting and adjusting artificial teeth in the mouths of patients; and its object is to enable the operator to so adjust the artificial teeth that the chin, may be madeto assume its exact normal position, or, in other Words, its natural position, with the mouth closed and the teeth in contact, that it naturally assumed before the natural teeth were removed. I attain this object by the mechanism illustrated in the accompanying drawings, in which Figure 1 is an elevation of my device, illustrating the manner of applying it for taking the measurement of the face. Fig. 2 is a back elevation of the upper gage-plate. Fig. 3 is an elevation of the implement supported upon a pedestal, and Fig. 4 is a side elevation of the same supported upon a springbow and arranged to be adjusted and operated by an extension-link.

Similar letters refer to similar parts throughout the several views.

A represents the main standard that supports the several parts of my device, and it is provided with a fixed arm A and an adjustable arm C for the support, respectively, of the head-plate B and the chin-plate C. These plates may be .made adjustable by means of the hubs D and set-screws cl, or they may be rigidly attached, as shown in Figs. 3 and 4.

6 represents a gage that may project from the upper plate B to a position to bear upon the forehead and regulate the position of the plate B on the head, as shown in Fig. 1.

Upon my better implementsl placea graduated scale, as ff f, upon the standard A and the projecting arms A and C, by means of which the several parts may be readily adjusted as desired.

As many modifications of this implement maybe made without departing from the spirit of the invention, I do not desire to restrict myself to the exact constructionlhereinbefore described Thus in Fig. 3 I have shown the standard A supported upon a pedestal A and Serial No. 65,882. (No model.)

secured by a set-screw e. In Fig. 4 I have shown it in the form of a spring-bow, having the upper arm A and the lower arm 0 connected by an adjustable link consisting of the fixed portion G, the revoluble handpiece G, and the screw-threaded bolt G", pivoted to the arm 01 at g and so arranged that the relative position of the plates Band C may be readily adjusted by turning the handpiece G, or, as may be readily seen, the implement may be readily supported upon a bracket from the wall, from a chair, and in various other ways and the several parts variously adj usted.

In the application of this implement the patient before having his teeth extracted closes the mouth,with the teeth meeting naturally, when the instrument is applied and the gage-plates brought to place to exactly measure the distance between a given position on top of the head and the lower side of the chin, as indicated in Fig. 1, of which a record is entered in the order-book, and when the impression is taken for artificial teeth the instrument is adjusted to the same measurements and applied so that the artificial teeth may be made to assume the same position as the natural teeth, thus giving the natural position to the chin and averting the danger of distorting or disarranging the general contour of the face. I

Having thus fully described my invention, what I claim as new, and-desire to secure by Letters Patent of the United'States, is-

1. In a dental gage, a supporting-standard, arms projecting at right angles therefrom,one of said arms being adjustable upon said standard, and a head-plate and a chin-plate supported upon said arms, substantially asand for the purpose set forth.

2. In a dental gage, a supporting-standard, a fixed arm and an adjustable arm projecting therefrom, adjustable supports on said arms, a head-plate on the upper support, a gage projecting from said plate over the forehead, and a chin-plate on the lower of said supports, substantially as and for the pur pose set forth.

Signed at Grand Rapids, Michigan, June 21, 1901.

CLARENCE R. VANDERPOOL.

In presence of ITHIEL J. OILLEY, F. D. DIBBLE. 

